Marked gummed tape



June 23, 1925. 1,543,060

(3. H. CROWELL- MARKED GUMMED TAPE Filed July 21, 1922 BY I ' ATTORNEY.

I carries the aniline or other when the-glue plied in the regular way strong and reliable. 0 adherence is Patented June 23, 1925.

UNITED STATES PATENT omen.-

Application flled July 21, 1922. Serial ll'o. 578,572.

To all whom it may concern:

Be it known that I, CHARLES H. Gnownnn, a citizen of the United States, and resident of the borough of Brooklyn, 'county of Kings, city and State of New York, have made a certain new lating to Marked Gummed'Tape, of which the following is a specification, taken in connection with the accompanying drawing.

This invention relates especially to paper or cloth ed tape in which separated or other hnes or other trade mark or designating markings have preferably been applied to the backing fabric before the adesive gum coating has been applied thereto. When such .a. marking coating of water soluble or water medium dyeing marking material is applied to the front face of the backing fabric the water medium naturally water soluble dye into the backing fabric especially where the usual uncoated and more or less open kraft papers are used for-this purpose. h This marking material which may have starch or the like incorporated therewith to give it increased body,-may be dried quickly on the front face of the backing fabric and then or other gum coating is apsecured throughout the backing fabric, including those parts which are more or less covered by the marking coating. The strength of the adhesive gum not, therefore, seriously impaired and such 5 a manufacturers trade marker other markgumm ing at once shows that it has been applied dur ng the process ofmanufacture so that cannot be successfully imitated by any method of marking the manufactured tape. Such a marking, which is incorporated not only in the backing fabric, but in the ad'- hesive gum coatin also gives an important check against frau ulent' replacement of the tape on ackages or articles sealed with such tape since any attempt to soak off the tape tends to decidedly increase the penetration of the yeing material of the marking into the backing fabric and of course any iuaccuracv the readily of alignment in replacing mmed tape on the package can be detected by careful subsequent exand useful invention restarch or other adhesive gum may be coating 1s cheap marking material for 1 since itcan be made up for about ten amination if the gum coating has been torn off or separated from the backing fabric of the gummed tape.

In the accompanying drawing showing in a somewhat diagrammatic way illustrative 1 embodiments of this invention: G

Fig. 1 is a perspective view of such tape;

Fig. 2 is an enlarged diagrammatic cross section therethrough, and

Fig. 3 is a similar sectional view.

In applying such trade mark or other designating markings to more or less filled cloth or referably to fiaper backing fabric any suita 1e water solu le or water medium marking material may be used, containing at least some read' coloring matter or dye stuff such as aniline dyes. In man cases it is desirable to give additional bo y to the marking material which maybe eflectively done by incorporating glue, gum or other adhesive or 'material therein and for this purpose a futa half pound of tapioca flour or a half. to three-quarters of a pound of'cornstarch may be used in making up a gallon of the marking material, these starchy materials being preferably boiled in the usual way to increase the consistency and adher ence thereof. In some cases, however, glue used to give bodyto the colored marklng material so that this colored adhesive composition may, if desired, be given substantially the same strength and adhesiveness as the re lar gum coating on the backing. Any suitable referably dyeing. or coloring material may be incorporated such as a quarter or a half ounce more or less of basic aniline coloring material per gallon, which is sufficient when properly applied to cover approximately one thousand to two thousand square feet of surface, depending of course on the ence or roughness of the kraft paper orother backing material to which it is applied. This makes not only an effective, but.a verythis purpose to forty cents or so'per gallon, depending upon the particular color and depth of tint desired.

As shown in Figs. 1 and 2, thebackin fabric 3 is first printed or impressed wit degree of absorbthese trade mark or other designating markings 2 which may be repeateo at intervals along the length and width of the backing and when theimpressions are dry they may in some cases have at least some thickness which is somewhat exaggerated in the impressions 2 in Fig. 2. In addition, the water solution of dye stuff penetrates or stains the adjacent front face of the backing fabric .itself so as to dye or color the same throughout the adjacent area indicated at 4:. Then when the adhesive gum coating 1 is applied to this front face of the backing fabric it adheres strongly not only to the exposedportions of the kraft paper or other fabric, but also throughout these designating markings, the water soluble dye stuff also penetrating the gum coating to an ap-' preciable extent, depending naturally on the thickness or viscosity of the glue or other gum coating when it is applied to the backing. When this gum coating is properly dried in any suitable way the gummed fabric may be cut or slit into the usual narrow strips indicated in Fig. 1 in which the trade mark or other designating markings 2 may recur at the desired intervals along the strip of a few inches more or less apart.

Such marked gummed tape may be used in the regular way for sealing packages or articles such as corrugated paper board cartons or containers and the penetration of the marking material into both the gum coatin and the backing paper or other fabrio de nitely identifies the gummed tape of the particular manufacturer so that its origin can be definitely established in case of failure of the tape or unauthorized openingof the ackages. Such tape is also of advantage or non-pilfering reasons since if the tape is torn off and reapplied the slightest difference of alignment or registry usually becomes apparent because of the double impression of these designating markings which would tend to be transferred from one element of the tape to the other-" Also if the tape is soaked off this double impression or misalignment is also apparent in many cases and in addition the thorough dampening of the rear face of the backing materlal of the tape is apt to greatly increase the'penetration of the aniline or other soluble dye stuff in these markings so that as indicated. in Fig. 3, these additional colored areas or portions 5 which sometimes even penetrate to the rear surface of the backing material give a definite indication of such' unauthorized tampering or other dampening action.

This invention has been disclosed in con-' nection with a number of illustrative embodiments, forms, materials, proportions and methods of pre aration and use, to the details of which d sclosure the invention is not of course to be limited since what isclaimed as new and what is desired to be secured by and gum coatin and penetrating the adjacent portions 0 said coating and backing, said markings comprising starchy body material and incorporated water soluble aniline dye stuff adapted to further penetrate the backing if it is moistened.

2. The gummed tape comprising an absorbent paper backing and an adhesive gum coatin applied thereto and a series-of superficial designating markings on said tape be tween said backing and gum coating penetrating the adjacent portions of said coating and backing, said markings comprising incorporated Water soluble aniline dye stud adapted to further penetrate the backing if it is moistened. I

3. The gummed tape comprising an absorbent paper backing and an adhesive gum coating applied thereto and a series of designating markings on said tape between said backing and gum coatin and penetrating only the'front portions 0 said backing fabric adjacent the gum coating, said markings comprising body material and incorporated water soluble aniline dye stuff adapted to further penetrate the backing fabric if it is moistened. V

4. The

and an ad 'esive gum coating applied thereummed tape comprising backing said tape between said backing and gum coating and penetrating only the adjacent front surface portions of said backing, said markings comprising body material and incorporated water soluble dye stuff.

5. The gummed tape comprising absorbent backing and an adhesive gum coating applied thereto and superficial designating markings on said tape beneath said gum coating and penetrating only the portions of said backing adjacent the gum coating, said markings comprising adhesive body material and incorporated water solubleaniline dye stuff adapted to further penetrate the backing fabric if it is moistened.

6. The gummed tape comprising absorbent backin and an adhesive plied t ereto and designatmg markings on m coating apsaid backing coloring adjacent portions of said backing and coating and said markings comprising water soluble dye stuff.

7. The gummed tape comprising absorbent paper backing and an adhesive m coating applied thereto and en rficia designating markings on said bac ing penetrating the backing and coating adjacent said coat ng and comprising water soluble 00 oring water adapted to further penetrate the backin if itis moistened.

8. T 1e gummed tape comprising an absorbent backing,

5 one face of said designating markings on backing and comprising ing so as to not show through the backing under ordinary use but; adapted to penetrate further and show at the other surface of the backing if the backing is moistened and an adhesive gum coating covering the face of the backing and the markings thereon for securing the tape with the markings concoated,

CHARLES H. OROWELL. 

